80944020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{449689}}^1$

素因数の和:449704

約数の個数: 36

約数和(自身を含む): 245530740

約数和(自身を除く): 164586720

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 449689, 899378, 1349067, 1798756, 2248445, 2698134, 4047201, 4496890, 5396268, 6745335, 8094402, 8993780, 13490670, 16188804, 20236005, 26981340, 40472010, 80944020]

約数ペア:

[(1, 80944020), (2, 40472010), (3, 26981340), (4, 20236005), (5, 16188804), (6, 13490670), (9, 8993780), (10, 8094402), (12, 6745335), (15, 5396268), (18, 4496890), (20, 4047201), (30, 2698134), (36, 2248445), (45, 1798756), (60, 1349067), (90, 899378), (180, 449689)]